[Bug c/35018] New: [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[Bug c/35018] New: [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[nizze86 at hotmail dot com]

Using gcc version 4.3.0 20080125 (experimental) (GCC) to crosscompile the
attached file for m68k-elf, I get the following line of asm:

move.l (%a2,%a0.l*4),76(%sp)

which is invalid for the target cpu I have specified. (-mcpu=5249) 

This is my compiler command line:
/rockbox/apps/codecs/Tremor$ /usr/bin/ccache m68k-elf-gcc
-I/home/nils/rockbox/apps -I.. -I. -I/home/nils/rockbox/firmware/include
-I/home/nils/rockbox/firmware/export -I/home/nils/rockbox/firmware/common
-I/home/nils/rockbox/firmware/drivers -I/home/nils/rockbox/gcctest
-I/home/nils/rockbox/apps/recorder -I/home/nils/rockbox/apps/gui -W -Wall
-Wundef -Os -nostdlib -ffreestanding -Wstrict-prototypes -mcpu=5249 -malign-int
-mstrict-align -fomit-frame-pointer
-I/home/nils/rockbox/firmware/target/coldfire/iriver/h300
-I/home/nils/rockbox/firmware/target/coldfire/iriver
-I/home/nils/rockbox/firmware/target/coldfire -O2 -DIRIVER_H300  -DMEM=32
-save-temps  block.c -o /home/nils/rockbox/gcctest/apps/codecs/Tremor/block.o

I used the following switches to configure gcc:

 --target=m68k-elf --prefix=/usr/local/m68k-elf --enable-languages=c
--disable-libssp --with-arch=cf

on my amd64 linux system


-- 
           Summary: [m68k-elf] Gcc ouputs invalid asm when compiling with -
                    O2 or higher
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: nizze86 at hotmail dot com
  GCC host triplet: Linux amd 64
GCC target triplet: m68k-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug c/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[nizze86 at hotmail dot com]

------- Comment #1 from nizze86 at hotmail dot com  2008-01-29 15:36 -------
Created an attachment (id=15048)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15048&action=view)
Preprocessed sources


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
           Severity|major                       |normal


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[schwab at suse dot de]

------- Comment #2 from schwab at suse dot de  2008-02-14 17:35 -------
The problem is in the addsi_lshrsi_31 insn:

(define_insn "addsi_lshrsi_31"
  [(set (match_operand:SI 0 "nonimmediate_operand" "=dm")
    (plus:SI (lshiftrt:SI (match_operand:SI 1 "general_operand" "rm")
            (const_int 31))
        (match_dup 1)))]
  ""
{
  operands[2] = operands[0];
  operands[3] = gen_label_rtx();
  if (GET_CODE (operands[0]) == MEM)
    {
      if (GET_CODE (XEXP (operands[0], 0)) == POST_INC)
        operands[0] = gen_rtx_MEM (SImode, XEXP (XEXP (operands[0], 0), 0));
      else if (GET_CODE (XEXP (operands[0], 0)) == PRE_DEC)
        operands[2] = gen_rtx_MEM (SImode, XEXP (XEXP (operands[0], 0), 0));
    }
  output_asm_insn ("move%.l %1,%0", operands);

The constraints are wrong for coldfire.


-- 

schwab at suse dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   GCC host triplet|Linux amd 64                |
   Last reconfirmed|0000-00-00 00:00:00         |2008-02-14 17:35:39
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[nizze86 at hotmail dot com]

------- Comment #3 from nizze86 at hotmail dot com  2008-10-26 11:25 -------
Created an attachment (id=16551)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16551&action=view)
Reduced testcase

A reduced testcase derived from the preprocessed sources.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[nizze86 at hotmail dot com]

------- Comment #4 from nizze86 at hotmail dot com  2008-10-26 11:28 -------
(In reply to comment #3)
> Created an attachment (id=16551)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16551&action=view) [edit]
> Reduced testcase
> 
> A reduced testcase derived from the preprocessed sources.
> 

compiled with:
m68k-elf-gcc -mcpu=5249 testcase.c -O2 -o testcase.o

using gcc 4.3.1 with configuration:
--target=m68k-elf --prefix=/usr/local/m68k-elf --enable-languages=c
--disable-ibssp --with-arch=cf


-- 

nizze86 at hotmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nizze86 at hotmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[mkuvyrkov at gcc dot gnu dot org]

------- Comment #5 from mkuvyrkov at gcc dot gnu dot org  2008-11-24 17:56 -------
Subject: Bug 35018

Author: mkuvyrkov
Date: Mon Nov 24 17:55:35 2008
New Revision: 142161

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142161
Log:
        PR target/35018

        * config/m68k/m68k.md (ok_for_coldfire, enabled): New attributes.
        (addsi_lshrsi_31): Add ColdFire-friendly alternatives.

        * gcc.target/m68k/pr35018.c: New.


Added:
    trunk/gcc/testsuite/gcc.target/m68k/pr35018.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/m68k/m68k.md
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2008-12-29 14:30 -------
 Maxim,

if this is fixed, please close this bug.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mkuvyrkov at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[mkuvyrkov at gcc dot gnu dot org]

------- Comment #7 from mkuvyrkov at gcc dot gnu dot org  2008-12-29 19:27 -------
This is fixed only on trunk; 4.3 still has the bug.  Do you think it's
appropriate to close it anyway?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018

[Bug target/35018] [m68k-elf] Gcc ouputs invalid asm when compiling with -O2 or higher

[law at redhat dot com]

------- Comment #8 from law at redhat dot com  2010-02-24 21:40 -------
Fixed long ago.  Holding it open because the patch wasnt' backported to an old
branch is rather silly.  


-- 

law at redhat dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35018